PNC Financial Group Services Inc. is tapping the US blue-chip bond market for the second time since a regional banking crisis rattled investors earlier this year.

The Pittsburgh-based bank is selling $750 million of fixed-to-floating rate notes due in 2034, which are expected to price Tuesday, according to a person familiar with the matter, who asked not to be identified as the details are private. The securities will yield 1.73 percentage points over Treasuries, compared to early pricing discussions of 1.95 percentage points, the person added.

PNC’s deal is the latest in a string of recent bank bond sales. Bank of America Corp. on Monday sold $5 billion of senior unsecured notes in four parts, while Goldman Sachs Group Inc. issued $1.5 billion of notes. Regional lender Huntington Bancshares Inc. also tapped markets for $1.25 billion of bonds.

Read: Goldman, BofA Tap High-Grade Bond Market Before Summer Lull

The deals come as companies rush to raise capital before the cyclical summer slowdown that typically kicks in toward the end of August. PNC last issued in early June, when it raised $3.5 billion of bonds.

For regional banks, there’s an incentive to tap investment-grade debt markets while funding costs are relatively low. The extra yield investors demand to hold financial bonds over average blue-chip debt has been declining since April, according to data compiled by Bloomberg.

On Wall Street, focus has also shifted to proposals from US regulators that would require lenders to raise more capital to protect them from market shocks. That could lead to even more issuance, especially from regional banks, as lenders anticipate stricter rules.

Jacobs Engineering Group Inc. and Alexander Funding Trust II are also in the market with deals Tuesday.

Representatives for PNC, Jacobs Engineering and Alexander Funding didn’t respond to requests for comment.

--With assistance from Brian Smith.

(Updates with deal launch details in the second paragraph.)